43222999 has 4 divisors (see below), whose sum is σ = 43440400. Its totient is φ = 43005600.

The previous prime is 43222961. The next prime is 43223017. The reversal of 43222999 is 99922234.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 99922234 = 2 ⋅49961117.

It is a cyclic number.

It is not a de Polignac number, because 43222999 - 2¹¹ = 43220951 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43282999) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 108402 + ... + 108799.

It is an arithmetic number, because the mean of its divisors is an integer number (10860100).

Almost surely, 2^43222999 is an apocalyptic number.

43222999 is a deficient number, since it is larger than the sum of its proper divisors (217401).

43222999 is a wasteful number, since it uses less digits than its factorization.

43222999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217400.

The product of its digits is 69984, while the sum is 40.

The square root of 43222999 is about 6574.4200504683. The cubic root of 43222999 is about 350.9443855793.

The spelling of 43222999 in words is "forty-three million, two hundred twenty-two thousand, nine hundred ninety-nine".